Open mesh tubular fabkics



(No Model.) I 2 Sheets-Sheet l.

B. MUENOH.

LOOM FOR WEAVING OPEN MESH TUBULAR FABRICS.

No. 373,533. Patented Nov. 22, 1887.

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N. PETERS. Plwtwl-iihngrapher. Walhl'nxion. 0.6.

2 Sheets-Sheet 2.

(No Model.)

B. MUENOH.

LOOM FOR WEAVING OPEN MESH TUBULAR FABRICS.

Patented NW. 22, 1887.

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FFICEQ BERNHARD MUENGH, OF BROOKLYN, NEXV YORK.

LOOM FOR WEAVING OPEN-MESH TUBULAR FABRICS.

SPECIFICATION forming part of Letters Patent No. 373,533, dated November 22, 1887. Application filed June 8, 1887. Serial No. 240,580. (No model.)

To all whom it may concern.-

Be it known that I, BERNHARD MUENCH, of Brooklyn, in the county of Kings, State of New York, have invented certain new and useful Improvements in Looms for Weaving Open- Meshed Tubular Fabrics, of which the fo1lowing is a specification.

The object of my invention is to provide a new and improved loom for weaving openmesh seamless fabrics, such as described in Letters Patent No. 361,594, issued to me on the 19th day of April, 1887, for sheaths for filtering-bags for saccharine liquids, &c.

The invention consists in a loom provided with two crossbars, from one of which a series of needles project upward and from the other a series of needles project downward. and in which between said bars reciprocating frames are mounted, one of them having upwardlyprojecting needles and the other downwardlyprojecting needles.

The invention also consists in the construe tion and combination of parts and details, as will be fully described and set forth hereinafter, and then pointed out in the claims.

In the accompanying drawings, Figure l is a front elevation of my improved loom for weaving open-meshed seamless fabric. Figs. 2 and 3 are inside face views of the two camdisks for reciprocating horizontallythe guideframes for the vertically-reciprocating fi amcs and showing part of the levers K and K. Fig. 4 is a top View of the said cams in place on their shaft, the levers being shown in section. Fig. 5 is a top View of part of the loom, showing the fixed and reciprocating frames. Figs. 6 and 7 are cross-sectional views of the harness part of the loom, showing the warps in their different positions.

Similar letters of reference indicate corre sponding parts.

To the bars A of the frame A, other suitable part of said frame, the cross bars B and B are secured. From the top cross-bar, B, the needles 0 project downward, and from the bottom crossbar, B, the needles 0 project upward, the planes of said rows of pins being vertical and parallel and a short distance from each other, as shown in Figs. 5, 6, and 7. Between the rows of needles 0 and O the vertically-sliding frames D and D are situated, said frames being mounted to recipor to any rocate in the guide-frames E and E, which are mounted to reciprocate laterally, and are secured to the horizontally reciprocating bars (I, guided in clips or lugs 66, held on theframe A. From the bottom rail of the frame D the needles F project upward, and from the top rail of the frame D the needles F project downward. The needles 0 O F F are provided in their free ends with the apertures c 0 ff, through which the warps can be passed. The frames D D are connected by the rods G G with thepivoted lever H, which is operated by the rod I, connected with a crank on the low shaft Z of the machine, shaft Z being driven by gears Z Z" from the crank or driving shaft S, as shown in Fig. 1. The horizontally-reciprocating frames E E are con nected by means of the rods J J with the levers K K, pivoted at their upper ends at K to the frame of the machine and provided on their lower ends with rollers which run in cam-grooves L L of the disks M M, mounted on a shaft, N, which is driven by bevel-gear Y Y or any suitable power-transmitting gearing from the crank-shaft S or one of the other working-shafts of the machine. The camgroove of one disk is the reverse of the other, and the disks are mounted in such a manner that the grooved faces of the disks are opposite or face each other, so that when said disks revolve the levers K K and the frames E E connected therewith will be reciprocated in opposite directions.

The batten and shuttlc-racc are of the usual construction and are operated in the usual manner.

The operation is as follows: Two sets of warps, o p and m n, are used, one set, 0 being used to form the bottom of the seamless fabric in the loom, and the set in n to form the top of said fabric, the same weft being used for both sets of warps. The warps o are passed through the eyes a of the front row of fixed needles,O,whichprojectdownward. Thewarps a are passed through the eyes cof the rear row of fixed needles 0', which project upward. The warps p are passed through the eyes f of the needlesFin the frontvertically-movableframe, D, said needles F projecting upward, and the warps m are passed through the eyes f of the needles F in the rear vertically-reciprocating frame, D, said needles projecting downward.

The-warps o and 10, passed through the eyes of the needles of the front fixed and verticallyreciprocating bar and frame, are the series for making the bottom of the seamless fabric, and the warps m and n, passed through the eyes of the needles in the rear fixed and verticallyreciprocating bar and frame, are the series for making the top of the seamless fabric. As shown in Fig; 6, the warps m, n, and p are raised and the warps o are lowered. The shuttle W is thrown through the space between the warps when said warps are in the positions shown in Fig. 6, and when the shuttle has passed, the weft rests on top of and across the warps 0. Before the shuttle is again thrown ered, whereby the warps p and m are lowered, thewarpsnremaining raised. Then theshnttle is thrown, the frames D and D are raised, and so on. After the shuttle has been thrown with the warps in the position shown in Fig. 6, the warps 0 and p are crossed by the lowering of the frames D and D, and thus the weft is held by the said warps'o and p, which form the bottom of the seamless fabric, and when the warps are in the position shown in Fig.7, and the shuttle thrown, and the frames D and D then raised, the warps m and n are crossed, and the weft is held by said warps m and a, forming the top of the seamless fabric, and so on.

In order to hold the warps and \vefts in the position in relation to each other in the fabric it is necessary that the warps be twisted after each shot-that is to say, after the weft has been shot between the warps 0 and 1) said warps are twisted to the right, and. after the weft has been again shot through the same warps they are twisted to the left, and so on. The same holds good for the warps m and n. This twisting is obtained by reciprocating the frames E and E laterally, for as each series of warps has part of its warps passed through laterally-reciprocating needles it is evident that by the shifting of the reciprocating-needles the said warps will'become twisted. The frame D is shifted every time the weft has been shot between the warps o and p, and the frame D is shifted every time the weft has been shot between the warps m and 11..

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A loom for weaving seamless fabrics, constructed with two parallel fixed bars, needles held in said bars, the needles on one bar projecting upward and those on the other bar downward, said needles having eyes in their free ends, and with two vertically-reciprocating frames between said bars, needles held in said frames, the needles in the frame adjacent to the bar in which the needles project downward projecting upward, and the needles in the frame adjacent to the bar on which the needles project upward projecting downward, and means for reciprocating the frames both horizontally and vertically, substantially as herein shown and described. across the loom the-frames D and D are low- 2. The combinatiomwith a loom-frame, of two fixed parallel cross-bars, upwardly-projecting needles on one cross-bar, downwardlyprojecting needles on the other crossbar, two

horizontally-reciprocating frames between thesaid bars, and vertically-sliding frames in the horizontally-sliding frames,upwardlyprojecting needles on one of the vertically-reciprocating frames and downwardly-proj ecting needles on theother verticallyreciprocating frame, and mechanism for operating said vertically and horizontally reciprocating frames, substantially as herein shown and described.

3. The combination, with a loom-frame, of two fixed parallel crossbars, upwardly-projecting needles on one crossbar, downwardlyprojecting needles on the other cross-bar, two horizontally-reciprocating frames between the two bars, sliding rods supporting said horizontally reciprocating frames, levers connected with said frames, cams for operating the levers, vertically-reciprocating frames in the horizontallyreciprocating frames, up-

wardly-projecting needles in one of the verti- BERNHARD MUENCH.

Witnesses:

OSCAR F. GUNZ, SIDNEY MANN. 

